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January 17, 2019, 04:06:35 16:06


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 11 
 on: Yesterday at 06:32:46 AM 
Started by mr_byte31 - Last post by mr_byte31
Audi publish a Self Study Programme that describes the various systems in detail, here's an overview document: http://www.volkspage.net/technik/ssp/ssp/SSP_282_d1.pdf. You can Google for other parts.
This is really helpful.
This is the complete list I could found : http://www.vaglinks.com/vaglinks_com/docs/ssp/
isn't there any video trainings instead ? i think you need to see how they handle such parts ...

 12 
 on: Yesterday at 06:25:05 AM 
Started by mr_byte31 - Last post by UncleBog
Audi publish a Self Study Programme that describes the various systems in detail, here's an overview document: http://www.volkspage.net/technik/ssp/ssp/SSP_282_d1.pdf. You can Google for other parts.

 13 
 on: Yesterday at 06:07:44 AM 
Started by mr_byte31 - Last post by mr_byte31
I have some interest those days to learn more about fixing cars.

I started to watch some youtube channels and found them quite helpful.

My problem , people on internet don't explain more about the concept behind those components and how to fix/repair/trace them.

one example is about filling the air conditioner in the car.. they say check this and that and do this and that. I don't know what those components are and what they do.
it seems like it is a blind fixing steps to get rid of specific problem.

I was asking of their any training/courses which is complete and explain in details a lot of stuff for car mechanics, electricity, ... ?

 14 
 on: Yesterday at 04:59:16 AM 
Started by metal - Last post by Catcatcat
Compiler update released

MPLAB® XC8 Compiler v2.05

The microchip changed the principle of treatment, the "dancing with a tambourine" helped.  Cheesy If you copy the missing files in the folder C: \ Program Files (x86) \ Microchip \ xc8 \ v2.05 \ pic \ bin, the compiler started working.

for comparison
v2.05 C standart C 99


 15 
 on: Yesterday at 03:17:17 AM 
Started by especialista - Last post by mr_byte31
I think it is better to avoid using opamp ( specially LM741) , they have bad frequency response.
I used one before and it made the sound quality very bad.


Posted on: January 16, 2019, 04:14:42 04:14 - Automerged

I also remember that you need to add a small resistance (5 Ohm) on the common of Q3 and Q4 to avoid mismatch !
at least that what I remember since long time ago.

 16 
 on: January 15, 2019, 04:03:17 04:03 
Started by Manuel - Last post by Manuel
Dear Bob,
I agree with you also !

The noise I am talking about is related to the Voltage regulator itself, not to the power supply.
The best power supply with the wrong voltage regulator will anyway create problems for some products.

Family like 78L03 (and all related equivalent design) are really poor vs  1702/3 in terms of noise.

take care,
Xo1

 17 
 on: January 15, 2019, 03:14:25 03:14 
Started by Manuel - Last post by Sideshow Bob
Agree with you 120%,
apart for the fact that I need a working full functional cost effective solution with a complete introspection about issues.

Anyhow, just to complete the question MCP1703 is really a great product thinking about cost, dimension, quality and noise.
Talking about noise some sensors I can confirm takes advantage about this question.
If your power demands are quite low. But noise characteristics are more important. Why do keep flogging yourself by using a switch mode power. Google "linear power supply" and you will find that all major on line electronics stores have such wall warts. And for a low power unit the price is not that bad

 18 
 on: January 14, 2019, 02:32:38 14:32 
Started by Manuel - Last post by Manuel
Agree with you 120%,
apart for the fact that I need a working full functional cost effective solution with a complete introspection about issues.

 Grin Grin Grin Grin

Anyhow, just to complete the question MCP1703 is really a great product thinking about cost, dimension, quality and noise.
Talking about noise some sensors I can confirm takes advantage about this question.
This is the reason I was digging around it...

Take care,
Xo!


 19 
 on: January 14, 2019, 11:26:26 11:26 
Started by Manuel - Last post by kreutz
IMHO you don't need to mess with the 3.3V regulator, just get another 12V power supply from a reputable manufacturer, or better yet, feed the 3.3V regulator from a 5-6 Volts pre-regulator. Cheap power supplies are cheap for a reason, in your case, the "cheapness" could be also a byproduct of a substandard design, or maybe its intended use doesn't require a good load transient response. Capacitive loading a switching power supply could induce control loop instabilities.

See: https://www.edn.com/design/power-management/4427185/DC-DC-converters-and-highly-capacitive-loads

 20 
 on: January 14, 2019, 09:44:48 09:44 
Started by moose52 - Last post by moose52
CountryUSA
SiteKennebunkComputer.com
NoteCurrently designing and building PIC bases IR control systems.  Would like to join your site.
Thanks
Dave

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